Nonlinear optical properties of BaWO4 crystal

Synthesis of Crystallized BaWO<sub>4</sub> Nanorods in a Microemulsion System

“…nanorods is good at stimulating Raman scattering in transient and steady-state [2]. This made it as a promising material for laser with self-raman conversion of radiation inside the active medium.…”

“…Nowadays, tungstate materials, BaSO 4 , have attracted much attention in view of its luminescent behavior and structural properties [1] [2]. As compared to other materials, the narrow line width of its stimulated Raman scattering (SRS)-active mode in BaSO 4 crystal (1.6 cm −1 ) leads to high peak intensity (63%).…”

“…As compared to other materials, the narrow line width of its stimulated Raman scattering (SRS)-active mode in BaSO 4 crystal (1.6 cm −1 ) leads to high peak intensity (63%). In particular, Raman gain has been measured to be 8.5 cm/GW at 1.06 μm wavelength [2]. Furthermore, the material is not hydroscopic and transparent in visible and near-infrared spectral range.…”

Nonlinear refractive index of vanadate crystals in the near IR region

“…We previously used single-beam Z-scanning, employing laser pulses of duration 1 ps, repetition frequency 1 kHz, and λ = 790 nm and 395 nm, to study the nonlinear optical characteristics of such Raman-active crystals as barium nitrate and tungstate, KGW, KYW, and KYbW [10,11] nonlinear absorption coefficients. We showed that these crystals are characterized by significantly greater nonlinear refraction than for the reference sample: fused quartz.…”

“…The process of stimulated Raman scattering can develop efficiently in such crystals, and SRS is itself a nonlinear optical effect and consequently can have a considerable effect on the measurement results. In our papers [10,11], however, we have shown that using ultrashort pulses and thin crystalline samples leads to a significant increase in the SRS threshold, and allows us to eliminate the effect of the SRS process on the measurement results for the nonlinear refractive index and the nonlinear absorption coefficient by the Z-scan method.…”